Home / 3,681.64-5,074.32-2,685.36

Finding the Fourth Proportional to 3,681.64, 5,074.32 and 2,685.36

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Solution

The fourth proportional to 3,681.64, 5,074.32 and 2,685.36 is: 3,701.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.64 : 5,074.32 = 2,685.36 : x
  2. Step 2: Convert to fraction form
    3,681.64/5,074.32 = 2,685.36/x
  3. Step 3: Cross multiply
    3,681.64x = 5,074.32 × 2,685.36
  4. Step 4: Simplify right side
    3,681.64x = 13,626,375.96
  5. Step 5: Solve for x
    x = 13,626,375.96/3,681.64
  6. Step 6: Final answer
    x = 3,701.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.